Frederick iiaciimann



(No Model.)

Patentedlan. !7-, I899. F. HACHMANN. v

MEANS FOR BONDING RAILWAY-inns.

v (Applicatiol; filed Sept. 14, 1898) NITED STATES ATENT FFICE.

FREDERICK.IIAOHMANN, 0E MILWAUKEE, WISCONSIN, ASSIGNOR or THIRTY-ONEFOR'lIETlIS fro M. 11 ELISABETH BAASEN AND HENRY L. srnonMEYER, or SAMEPLACE.

MEANS FOR BONDING RAILWAY-RAILS.

SPECIFICATION forming part of Letters Patent No. 617,737, dated January1'7, 1899. Application filed September 14, 1898- Serial No. 690,959. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, FREDERICK IIACHMANN, of Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented a new and usefulImprovement in Means IorBonding Railway-Rails, of which the following isa description, reference being had to the accompanying drawings, whichare a part of this specification.

Myinvention relates to bonding or coupling together the abutting ends ofrailway-rails, and because my invention is especially applicable to therails of street-railways I show in my drawings herewith a style ofrailwayrail substantially such as is in common use,-

which being somewhat changed inmaking is adapted for the application ofmy invention thereto.

The invention consists of the means, .in combination and in segregation,for bonding together railway-rails, as herein described and claimed, ortheir equivalents.

In the drawings, Figure l is a vertical longitudinal section of adjacentportions of the abutting ends of railway-rails, showing therewith myimproved means, partly in section, for bonding the rails together. Fig.2 is a top plan View of the abutting ends of two railway-rails and myimproved bonding means applied thereto. Fig. 3 is an end viewof thestreet-railway railillustrated in Figs. 1 and 2, showing the thickenedportion of the web of the rail near its end required for applying myimproved bonding means and the bonding device in. cross-section. Fig. 4:is a perspective View of my improved rail-bonding device. Fig. 5isa'perspective view of a plug employed in securing my improved bondingdevice in position on the ends of the rails.

A streetn'ailway rail as now constructed is formed with a foot 10., aweb 11, a laterallyprojecting top tread 12, and a somewhat lower andoppositely-projecting flange or ledge 13. To apply my improved bondingdevice to rails of substantially this form, it

is necessary to prfiido somewhat enlarged or' thickened ends of therails, and forthis purpose the rails are constructed with a boss orthickened web 111,, extendingfrom the foot to the tread 1 2 and from theend of the rail in the direction of the long axis of the bar orbodyofthe device, forming a projecting too 17. These legs are preferablyseverally in- "elineder beveled on the side of the too 17 from thejunction of the leg with the body of the device to the extremity of thetoe, forming the oblique Wall or surface 18. The wall of the legopposite the'beveled wall 18 is ad visably transversely recessed, asshown at 19.

For applying this bonding device to-the abutting ends of the rails alongitudinal recess is cut in the tread 12 of the rails of such size andvform as to receive the body 15 of the bonding device therein, anddeeper recesses or sockets are cut. in the rails, respectively, at

the ends of the elongated recess or channel to admit therein the legs 16of the bonding device. These sockets in the rails are undercut in suchdirection as substantiaiiy to be complementary to the beveled surfaces18 when the bonding device is applied to the rails, and the sockets inthe rails in which these legs 16 are inserted, while being substantiallyof the same width transversely as the width of the legs 16,-areelongated in the other direction sufficiently to permit of the readyinsertion ofthe enlarged extremities of these legs 16 into the sockets.

of two rails provided with such channels and sockets the legs 16 areinserted in the sockets in the rails, the body 15'being in the channeltherefor in the tread of the rail, and thereupon the bonding device ispushed endwise in its seat, carrying the projecting toe por tions 17 ofthe legs under the overhanging portions of the rails in the manner shownin Fig. 1, bringing the beveled surfaces 18 be low and oppositecorrespondingly-underout surfaces of the rail or walls of the sockets.Thereupon the plug 20 is. inserted in the 1-0 In apply ing my'bondingdevice to the abutting ends cess in the rail at the rear end ofthe bonding device,filling the "aperture in the rail at" molten metal 23passes beneath the extremity of the leg and about its too and into therecess 19 and fillsup the socket about and on either side of a tongue22, projecting medially from the under side of the plug 20. As thismetal sets and hardens it forms with the legs 16 and the plug 20 a keythat secures the bending device firmly in the end of the rail. devicemolten metal is poured through'the aperture 24in the body of the bondingdevice into the space in the rail-socket about the leg 16 therein, andwhen this molten metal 23 sets and hardens therein this extremity of thebonding device is thereby locked firmly in the end otthis rail.

The bonding deviceiis so constructed and fitted into the ends of therails that its top surface is flush with the surface of the tread of therails, whereb y'a'smooth and continuous tread-surface is formed along onthe rails and from one rail to the other. The sides of the tongue 22 ofthe plug 20 are preferably made concave, so that the free edge .of thetongue is wider than its medial portion, thus forming a key-likeconstruction that cannot be removed from the metal that was poured intothe socket and has hardened about it.

hat I claim as my invention is- 1. The combination with abuttingrailwayrails having a recess in the tread of each rail at the abuttingends thereof and sockets each with an overhanging wall'in the rails atthe inner ends of the recesses, of a bonding de vice having a bar-likebody fitted in said recesses and terminal legs with toes projectinglaterally iu the same direction inserted in said sockets the toes beingunder the overhanging walls of the sockets, and means locking saidbonding device in place in the rails.

At the otherextremity of the bonding 2. The combination with theabutting ends of two railway-rails provided with registerin g recessesin the treads of the rails and sockets having undercut walls in therails at the inner extremities of the recesses, of a bar-like bondingdevice fitted in said recesses, and legs on the extremities of said barhaving projecting toes, said legs being inserted in said sockets thetoes under the overhanging walls of the sockets, a plug in the recess atthe end of the bonding device holding the bonding device in place, thetoes of the legs under the overhanging walls, and metal fillings intro-,

duced in molten state into the sockets about the legs securing the partsin position.

3. A bonding device for bonding together railway-rails, consisting of anintegral metal bar and legs thereon one at each extremity of the bar.projecting inthe same direction, the legs having laterally-projectingtoes on corresponding sides of'the legs.

4. An integral bonding device for bondingtogether railway-rails,comprising an elorn gated bar, legs at the ends of the bar project ingtherefrom on the same side of the bar, the

legs each having a beveled side wall, an enlarged free end projectinglaterally in the same directiomand a recess in the wall opposite thebeveled wall.

5.- A railway-rail provided with recesses one at each-end in the treadof the rail extending in the direction of the length of the rail fromits ends inwardly a distance, and provided with sockets entering deeperinto the rail one at or near the end of each of said recesses andcontinuous therewith, said sockets each having an undercut wall, theundercut walls of the sockets projecting in thesame direction wherebytwo abutting rails may be securely bonded to each other by a conformingbonding-piece.

In testimony whereof I affixmy signature in presence of two witnesses.

- FREDERICK HAOHMANN.

Witnesses C. T. BENEDICT, C. II'. KnnNEY.

